Advertisements
Advertisements
प्रश्न
Fill in the blanks with suitable words .
Wave speed in metres per second equals frequency in ............ multiplied by ..................... in ..................
Advertisements
उत्तर
Wave speed in meters per second equals frequency in hertz multiplied by wavelength in meters.
APPEARS IN
संबंधित प्रश्न
Write the approximate speed of sound in steel.
What name is given to those aircrafts which fly at speeds greater than the speed of sound?
A sound signal of 128 vibrations per second has a wavelength of 2.7 m. Calculate the speed with which the wave travels.
Fill in the blank with suitable word :
The speed of sound in a solid is ............... than the speed of sound in air.
Nita heard the sound of lightning after 4 seconds of seeing it. What was the distance of the lightning from her?
(The velocity of sound in air is 340 m/s.)
Write the formula for speed of sound in a gas using Laplace correction.
Air temperature in the Rajasthan desert can reach 46°C. What is the velocity of sound in air at that temperature? (V0= 331 ms–1)
An ultrasonic wave is sent from a ship towards the bottom of the sea. It is found that the time interval between the transmission and reception of the wave is 1.6 seconds. What is the depth of the sea, if the velocity of sound in the seawater is 1400 ms–1?
Establish the relationship between the speed of sound, its wavelength and frequency. If the velocity of sound in air is 340 m s–1, calculate
(i) wavelength when the frequency is 256 Hz.
(ii) frequency when the wavelength is 0.85 m
Numerical problems:
A Sound wave travels at a speed of 344 ms-1. If the wavelength is 1.5 cm, what is the frequency of the Wave? Will it be audible?
